Finding the Fourth Proportional to 207,918,986.16, 286,931,584.26 and 113,831,545.08
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Solution
The fourth proportional to 207,918,986.16, 286,931,584.26 and 113,831,545.08 is: 157,089,384.53
Step by Step Solution
- Step 1: Write the proportion equation
207,918,986.16 : 286,931,584.26 = 113,831,545.08 : x - Step 2: Convert to fraction form
207,918,986.16/286,931,584.26 = 113,831,545.08/x - Step 3: Cross multiply
207,918,986.16x = 286,931,584.26 × 113,831,545.08 - Step 4: Simplify right side
207,918,986.16x = 32,661,865,568,568,008 - Step 5: Solve for x
x = 32,661,865,568,568,008/207,918,986.16 - Step 6: Final answer
x = 157,089,384.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.